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Self-study IT network Linux load balancing video tutorial

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Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

Course Advanced 17659

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Band of Brothers front-end example display video tutorial

Course Advanced 11371

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in php any value has a unique string representation (such as the php code itself). I post this question to speed up the design process of this program. Some values are easily converted to strings: numbers, booleans, etc. Some are not easy: objects, arrays, resources. I think the transfer object and

2023-09-05 15:34:44

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User avatar and personalized dress settings for real-time chat system based on PHP

Course Introduction：User avatar and personalized dress settings of real-time chat system based on PHP With the popularity of social networks and online chat, the demand for user personalization has become more and more obvious. In a real-time chat system based on PHP, user avatars and personalized outfits are important factors to improve user experience and activity. This article will introduce how to implement the upload and display functions of user avatars through PHP, and provide code examples to help readers better understand. User avatar upload Before implementing the user avatar upload function, we need to create a folder for storing user avatars.

2023-08-26 comment 0 672

How to implement avatar upload function in Vue

Course Introduction：Vue is a popular front-end framework that can be used to build highly interactive applications. During the development process, uploading avatars is one of the common requirements. Therefore, in this article, we will introduce how to implement the avatar upload function in Vue and provide specific code examples. Using a third-party library In order to implement the avatar upload function, we can use a third-party library, such as vue-upload-component. This library provides an upload component that can be easily integrated into Vue applications. Here is a simple example

2023-11-07 comment 0 1539

How does CakePHP handle file uploads?

Course Introduction：CakePHP is an open source web application framework built on the PHP language that simplifies the development process of web applications. In CakePHP, processing file uploads is a common requirement. Whether it is uploading avatars, pictures or documents, the corresponding functions need to be implemented in the program. This article will introduce how to handle file uploads in CakePHP and some precautions. Processing uploaded files in Controller In CakePHP, uploaded files are usually processed in Cont

2023-06-04 comment 0 1497

Use uniapp to implement file upload function

Course Introduction：uniapp is a cross-platform application development framework based on the vue.js framework, which can achieve the effect of writing once and deploying on multiple platforms. In practical applications, file upload is a common requirement, such as image upload, video upload, etc. This article will introduce in detail how to use uniapp to implement the file upload function and provide specific code examples. The basic idea of implementing file upload is: first package the selected file on the front end, and then send it to the back end for processing. In uniapp, you can use the officially provided uni.

2023-11-21 comment 0 2939

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